A doctor’s no-holds-barred analysis of coronavirus testing shortcomings is going viral ― not just because of his blunt talk but because of where he made his case: live on Fox News.

Dr. Rishi Desai, chief medical officer of the Osmosis website, vigorously shook his head “no” as Fox News host Martha MacCallum mentioned, as President Donald Trump has, that there were supposed to be millions of tests available. She also said people were still waiting for a quick test for COVID-19.

Desai responded with a fact-check.

“Yeah, they’re working on it,” he said. “They should’ve been working on it for months.”

Desai noted that the World Health Organization had issued a warning about the virus on Dec. 31, 2019.

“We knew coronavirus was coming, we knew that it was a respiratory disease, we knew it was person-to-person,” he said.

Yet it’s only now that the FDA approved a 15-minute test and even it has shortcomings. Then, Desai explained how South Korea was able to get ahead of the situation by testing early and often.

“Look at what South Korea did, and what we did,” he said. “Their population is one-sixth of ours. Look at the cases they have. Look at the mortality they have. It’s a trifle compared to what we’re dealing with right now because we’ve had a very weak response and they had a really strong response.”